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Systematics Of The Subterranean Amphipod Genus Stygobromus (Crangonyctidae) In Western North America, With Emphasis On Species Of The Hubbsi Group, Daqing Wang

Biological Sciences Theses & Dissertations

This dissertation presents a study of the systematics of the subterranean amphipod genus Stygobromus of family Crangonyctidae in western North America. A total of 53 species of Stygobromus from western North America (including one species from Wisconsin) are recognized, 28 of which are new to science. All species are described and illustrated using external morphological features. A key to the western North America species of Stygobromus is given, as well as a summary of habitats of the species.

Cladistic analyses are conducted using 32 external morphological characters and two categories of outgroup choices: “all-zero” theoretical ancestor and three non-Stygobromus …